A. 3 years B. 3.5 years C. 4 years D. 5 years
Home/Civil Engineering (MCQs)/Irrigation Engineering/The digested sludge from septic tanks, is removed after a maximum period of Waste Water Engineering The digested sludge from septic tanks, is removed after a maximum period of A. 3 years B. 3.5 years C. 4 years D. 5 years Answer: Option A. Explanation: No answer description available for this question. Show AnswerDiscussion